update version

README.md

@@ -6,7 +6,7 @@
 <div align="center" style="text-align: center;">
 
 ![Go version](https://img.shields.io/badge/go-%3E%3D1.16<recommend>-9cf)
-[![Release](https://img.shields.io/badge/release-1.0.3-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-1.0.4-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
 [![codecov](https://codecov.io/gh/duke-git/lancet/branch/main/graph/badge.svg?token=FC48T1F078)](https://codecov.io/gh/duke-git/lancet)

README_zh-CN.md

@@ -6,7 +6,7 @@
 <div align="center" style="text-align: center;">
 
 ![Go version](https://img.shields.io/badge/go-%3E%3D1.16<recommend>-9cf)
-[![Release](https://img.shields.io/badge/release-1.0.3-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-1.0.4-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com//duke-git/lancet?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet)](https://goreportcard.com/report/github.com/duke-git/lancet)
 [![codecov](https://codecov.io/gh/duke-git/lancet/branch/main/graph/badge.svg?token=FC48T1F078)](https://codecov.io/gh/duke-git/lancet)
@@ -63,7 +63,7 @@ func main() {
 #### 1. convertor数据转换包
 
 - 转换函数支持常用数据类型之间的转换
-- 导入包：import "github.com/duke-git/lancet/cryptor"
+- 导入包：import "github.com/duke-git/lancet/convertor"
 
 ```go
 package main

fileutil/file.go

@@ -17,7 +17,7 @@ func IsExist(path string) bool {
 	if err == nil {
 		return true
 	}
-	if errors.Is(err, os.ErrExist) {
+	if errors.Is(err, os.ErrNotExist) {
 		return false
 	}
 	return false

fileutil/file_test.go

@@ -9,8 +9,8 @@ import (
 )
 
 func TestIsExist(t *testing.T) {
-	cases := []string{"./", "./a.txt"}
+	cases := []string{"./", "./file.go", "./a.txt"}
-	expected := []bool{true, false}
+	expected := []bool{true, true, false}
 
 	for i := 0; i < len(cases); i++ {
 		res := IsExist(cases[i])